Orton VentMaster® Downdraft Kiln Venting Systems

The Orton VentMaster® is available in 110 and 220 volts which move
73 Cubic Feet per Minute: Normal room conditions will replenish air, no
need for makeup air system.
It weighs 10 Lbs.
It comes with 4 foot high temperature hose.
Available VentMaster Extender Kit extends length an additional four feet (recommended 25 foot maximum).

The patented Orton Vent Master not only vents fumes but also improves firing results.

It pulls fresh oxygen into the kiln for brighter colors, especially
noticeable with red and orange glazes and decals. Fire red and green
glazes in the same load without glaze contamination. The Vent Master
draws air from the kiln, dilutes it with room air, and pushes it
outdoors through a vent hose.

The extra oxygen and increased air movement help burn carbon out of
the clay, which helps eliminate a host of firing problems: bloating,
dark patches in the clay, porcelain mildew, pinholes, pitting,
blisters, and bubbles.

The flow of fresh air helps even out the temperature throughout the
kiln. The vent also extends the life of the Kiln Sitter tube assembly,
since fumes by-pass the tube.
You will enjoy the convenience of the Vent Master. Throughout the
firing, keep the lid closed and peephole plugs inserted. You no longer
need to remember to lower the hot lid from vented position.

The Vent Master increases firing time by about five minutes for
firings up to cone 4; 12 minutes for firings from cone 4 to 10. It has
little effect on maximum temperature. At 132 watts, electrical
consumption of the Vent Master motor is only pennies per firing.

From the shut-off temperature down to 1000°F, the Vent Master has
little effect on cooling time. From 1000°F to room temperature, it
reduces cooling time by about two hours.

VentMaster:All VentMasters include the main
motor & blower housing, one four foot high-temperature hose, one
collector cup, multiple hose clamps, installation instructions and
sample cones for test firing. VentMaster Motor can be kept on the floor
or mounted to the wall. If placement under kiln is obstructed, the
collector cup can also be attached to the side of the kiln.With Downdraft Venting, the kiln
is kept under a slight negative pressure. Gases are pulled out of the
kiln near the bottom, mixed with fresh room air and exhausted to the
outside through a duct. Improved air flow in the kiln results in more
uniform temperatures, reducing hot and cold spots.
Kilns cool faster when properly vented. In some cases, the kiln can
cool down up to four hours faster, meaning you can empty and refill the
kiln in less time.
Downdraft venting can also extend the life of the metallic parts of
your kiln by removing corrosive fumes. This means longer kiln life and
reduced repair costs.